Demountable tractor rim for hard surfaces



IVI. SAN-DERFIELD.

DEMOUNTABLE TRACTOR RHVI FOR HARD SURFACES.

APPLICATION FILED JULY |6,192|.

INVEN TOR.

ATTORNEY. l

M. SANDERFIELD.

DEMOUNTABLE TRACTO RIM FOR HARD SURFACES.

APPLICATION FILED IuLv I6. 1921.

PaIenIeIIAug. 22, 1922.

3 SHEETS-SHEET 2.

INVENTOR. @www ATTORNEY.

M. SANDERFIELD. y DEMOUNTABLE TRACTOR RIM Fon HARD sunFAcEs.

APPLICATION FILED JULY 16.1921.

Paten-ted Aug. 22, 1922 I N V ENTOR.

ATTORNEY.

MARTIN snNDERFrELD, or ATHENs, rumors.

j DEMoUNrABLETnacToR Briar ronnie-an ksuitrhzficiisi., y I ,i L

To allee/hom t may 00m-ern Be it known that I, MARTIN SANDERFIELD, a citizen of the United States, Athens, vin the county of Menard and Sotate of Illinois, have invented certain new and useful lfmprovernents in Demountable `Trac properly without side slip. `llhile these lugs, flanges, and like projections are necessary on tractors in order to secure tractive lengagenient withsoft ground,"as in plowing,

hauling over ields,kccultivating, and like work, these lugs or projections arejdecidedly objectionable if ,it is Vdesired to move the tractor' from place to place over ordinary country roads, either hard orV soft, for the reason that if the road is soft the teeth or lugs on the tractor wheels will cut up the road, Vdoing la great deal of damage to it,

and even it' the groundis hard they will tend tov cut up the road yand if thevroad surface is too hard l'for the lugs ,to cut'itup, then the j tractor willbe jolted, jarred and shalren to such `an extent'as tof'seriously damagel the engine and'inconvenience the .operator of the tractor. y

`Again, if tl'iesetractors are to be exhibited and demonstrated on city streets or on the -floors'of warehouses', exhibitionA rooms, etc., they will'be liable'to injure the streets and 'injure the floor surfaces overwhich the tractor is being moved or, as before stated,

l jarl and jolt the engine of the tractor so as to seriously damage it and jarv the driver of the tractor.. 1 4 j' 'In lconsequence rof the damage done to roads and streets by tractors having'lugs or langesvon the traction wheels, vmany VStates "and ma'nrycities forbidth'e driving of trac- Wah the@ objects in mind. .the mi Object of my y.invention is to providev a rim adapted to'bev dis osed arounda traction wheel and adapter' y to sheath the lugs'or residing at Specification of LettersEatent. j Al.,lienijw(l 22,1922. 'Appl/imma area July 1e, C

192i. serial No.4e5es2.

smooth periphery forfthe traction wheel, permitting the traction wheel to travel over roads, either hard or` soft, and l permitting the tractor tofbe driven over city streets, hardwood floors, cement floors, etc.

A further object is to providea device of. this 'character so constructedfthat .a full tractive engagement maybe securedfbetween the rim and theroad or surfaceoverwhich 65 it travels. j j j Still another object is 'to provide arim,`

ot this character which may be readily a'p-y plied to thetractor wheel orreadilyremoved therefrom, and specifically to vprovide a rim which may be laid upon' the ground andy thenthe tractor wheeldriven. thereony andtheny the rim closed around the tractor wheel and readily engaged therewith.

Another object is to provide an improved means for'connecting the Vtwo 'ends ofthe rim 'and lfor forcing the demountable rim in close contacty with the lugs on the 'tractor wheel. v i `y y And another object yis to provide means 80 for bracing thegrim vattlie junction between Y the ends thereof. j

0th er objects will appear in the course of the followingdescription.

My invention isillustratedin theaccvoInf 85 c panyingdrawings, whereing2` 'l ,l

Figure l is an elevation of a tractor Wheel. with my im'j'noved demountable rim applied` i thereto; l v L y Figure 2-is la fragmentary'face View of 90 the rim looking at the-joint thereof;

Figure 3 is 'a' fragmentary longitudinal sectional view along the lineV of Fig? ureQ; y ,Y i

Figure 4l is va perspective vview of "one of 95 the rim sections; 4

Figure 5- is a View of the front'wheel 'of a tractor having my improved rimapplied thereto;

Figure 6` isv a section on the line 6-i-6'0f 100 vFigure 5;

Figure 7 is an enlarged perspective view of the'rirn at thejoint'showing themanner in which the bolt 27 engages'the pertorations 22 to 'drafwthe rim into place;

` In they accompanying drawings, I have illustrated the principleof my construction as applied to a rim for the front wheels'of the tractor and a rim for the rear wheels of the tractor. l l the same, though thel yvaryfn detailsin orl der to suit them for t er diferent purposes.V

The'prin'ciple of the two devices is 110v I will first describe the rim which is applied to the rear wheels of the tractor. This demountable rim is formed of a pluralityv of sections, there being as many sections as may be desired, as for instance six sections to a wheel, each of these sections being constructed as in Figure el, each section consisting of a. transversely extending web 10 having` two side walls 11, these side walls extending' approximately at right angles to the web 10. To the lbottom of this web 10'is riveted by rivets 122L a lagging of rubber or other suitable material, designated 12. This lagging might be made of rubber, leather, or any other suitable material. which will give a tractive surface. The side walls 11 at one end terminate at the end of the bottom lO of this shoe or rim and are provided with the openings 13. The side walls 11 at the other end of this section, however, extend beyond the tread or bottom portion, as at 14,

and are provided with the openings 15. These sections are connected by rivets 16 extending through the tongues 14 or projecting portions of the side walls and through the perforations 13, thus pivoting `the sections to each other. lt will be noticed that the projecting tongues 1l are slightly greater in width than the Width of the side walls 11.

At the joint A between the ends of the sections, the web 10 has riveted to it the brace plate 17 which is relatively long and at its extremity extends inward at a right angle, as at 1S, the marginal end of this angular extremity 18 being in turn angularly ybent backward, as at 19.' Thus it will be seen that this plate 17 extends over the ioint A when the rim is placed around the wheel. For the purpose of holding the rim in po sition upon a wheel. and yet perniitting` the rim to be readily removed therefrom` l. provide the side walls 11 with the fasteningl means illustrated in Figure 2. llach side wall at the meeting end of the rim has riveted to ita plate 20, that end of the plate adjacent the joint being bent outward and rearward, as at 21, and having an elongated perforation 22. Rearward of this flange 21 the plate is bent outward and then inward to form an approximately V-shaped Harige v23 which is also Perforated, as at 24, and

rearward of this flange the plate is outwardly bent, as at 25, at right angles to the body of the plate, then inclined inward and rearward toward the side wall 1l, and then extended along parallel to the side wall and riveted, as at 2,6.l Passing through the aperture 22 and through the apertures 24: on

yeach side of the wall at the joint thereof is longitudinally curved bolt 27 smaller than the apertures 22 andslighly smaller than the apertures 24. This bolt is screw-threaded at its extremities, as 28, and carried upon the screw-threaded extremities are the Buts 29 which are adapted to bear against one face of each approximately V-shaped flange 23. The extremities of the bolts pass through apertures 30 formed in the flange or wall 15.

Tt will be obvious now that when the nuts 29 are turned up or home, that strain will be placed upon the il-shaped flanges 23 and the two ends of the demountable rim will. be drawn toward each other, clamping the'rim tightly upon the tractor wheeh'the lugs or flanges of the tractor wheel resting against the web 10 of the rim and supporting the same. The flange. 19 of the brace plates 17 also rests against the rim of the tractor wheel and the plate 17 rests against the inner face4 oit the web 10 so that the joint A is securely braced against strain or against any inward movement. By reason ofthe fact that the apertures 22 are elongated inward toward the huh of the wheel, it will be obvious that the turning home of the nuts 29 tends to straighten the bolt 2'? (see Figure 7) so that the bolt contacts with the upper walls of the perforations 22 and not only clamps Athe deinountable rim tightly around the wheel, but forces the web of the rim inward against the lugs.

l have illustrated a tractor wheel having l a rim B provided. with transversely extend ing, right angular lugs C, but obviously this is merely to show al type of tractor wheel and obviously my device can be used on other i One of these 1 r;

war-dly projecting. il-shaped flange (l. `The rim which is applied to this type of wheel is precisely the same as that applied to the rear wheel, save for the factl that the lateral wall 11 of the web 10 are inwardly flanged, as at 31, so as to .tit against the rim of the tractorand accommodate the medial tlange Z which holds the rim in place and from lateral movement. Utherwise than this, this demountable rim is constructed precisely the same as the rim` heretofore described.y is formed in pivoted sections,-and the ,rim is held upon the wheel by the longitudinal bolts 27 in the'same manner as before described.

The brace 18V is to be omitted, or if provided is cleft or formed in two parts to ac,- commodate the medial flange d. In the use of this demountable rim, when it isdesired to apply the rims, they are unbolted and are laid upon the ground and the tractor run" upon these rims. Then the rims are brought up around the tractor,` wheels and fastened by the two .bolts 27 on each side of each rim,

by its use the farmer can readily transform' his tractor so that it may be yused on hard ground, over hard roads or soft roads, city Y streets, or even over hardwood floors, the

rubber lagging securing sufficient tractive surface for the tractor wheel without, however, inany way marring or injuring the hard surfaces over which the tractorv`opcrates. Furthermore, this lagging being smooth upon its outer face prevents any jolts or ars being given to the tractor which would damage the machinery thereof or inconvenience the driver. y

It is to be particularly noted that this device will save considerable time to farmers and others owning tractors who desire to drive the tractor over hard, dry, dirt roads or over hard surface roads, as it is a matter of but a few minutes to' put the rims in place or to remove them, whereas with they ordinary form of tractor it isa matter ofl hours to remove and replace the lugs, and furthermore the lugs on the wheels of some tractors are not removable so that the owner would be at a disadvantage unless he had some sort of rim to extend over the lugs. A

further matter tol be noted is that it is not necessary to have lagging on the exteriorv surface of my demountable rim where the' owner merely desires to use the demountable rim for transporting his tractor from one locality to another. Thereford I do not vwish to be limited to the use of lagging.

I claimtl. A demountable rim for traction'wheels of the character described comprising a rim having side flanges, the rim beinglformed in sections pivote'd toeach other and adaptj,

and having a series of openings disposed in a line concentric` tothe axis of the traction wheel, and longitudinally curved bolts pass? ing through the `openings in the flanges whereby said demountable rim may be contracted into engagementwiththe tractor wheel.

.. A demountable rim 'for traction wheels formed of al plurality of transverse U-z shaped sections, the sections having `pivotal,

engagement with eachother and each sec-y tion having a smooth tractive tread surface,

the sections'on eachside of the joint of said rim and on each side wall thereof having 'atl tached thereto longitudinally vextending plates, each plate at itsv end adjacent the joint being outwardly and rearwardlyv bent and formed with. an elongated aperture, each plate rearward of thisv flange being formed with an apertured V-shaped flange 4and rearward of this flange being outwardly bent and then inclined' inward toward the.`

side wall of the section and thenv attached i of said flanges, and nutson said bolt engag-A j ling the Veshaped flanges.`

3. A demountable rim fory tractors formed vof aplurality of sections, eachof said secltions being U-'shaped in cross section and the sections being pivoted to each other, one end section of the demountable rim having attached to its free extremity on its inside' face a longitudinally extending brace` platey j adapted to extend over thejoint between the f sol two ends of the demountable rim and rest upon the inside face of the adjacent section',-` said brace plate at lits extremity ybeing in? vwa'rdly bent at right` angles to the brace plate v and flanged: to rest against ythe traction wheel, the side 4walls yof the sections adjacent the joint being formed with out- MARTINv sANDERFiELDQ f 

